- force 1.619 macros which disable constify grsec plugin for external modules

[packages/kernel.git] / kernel-small_fixes.patch

--- linux-2.6.32/drivers/infiniband/Kconfig~	2009-12-05 00:26:03.663774916 +0100
+++ linux-2.6.32/drivers/infiniband/Kconfig	2009-12-05 00:26:05.914179759 +0100
@@ -37,7 +37,6 @@
 config INFINIBAND_ADDR_TRANS
 	bool
 	depends on INET
-	depends on !(INFINIBAND = y && IPV6 = m)
 	default y
 
 source "drivers/infiniband/hw/mthca/Kconfig"
--- linux-2.6.33/scripts/mod/modpost.c~	2010-02-24 19:52:17.000000000 +0100
+++ linux-2.6.33/scripts/mod/modpost.c	2010-03-07 14:26:47.242168558 +0100
@@ -15,7 +15,8 @@
 #include <stdio.h>
 #include <ctype.h>
 #include "modpost.h"
-#include "../../include/generated/autoconf.h"
+// PLD architectures don't use CONFIG_SYMBOL_PREFIX
+//#include "../../include/generated/autoconf.h"
 #include "../../include/linux/license.h"
 
 /* Some toolchains use a `_' prefix for all user symbols. */

commit 87b09f1f25cd1e01d7c50bf423c7fe33027d7511
Author: stephen hemminger <shemminger@vyatta.com>
Date:   Fri Feb 12 06:58:00 2010 +0000

    sky2: dont enable PME legacy mode
    
    This bit is not changed by vendor driver, and should be left alone.
    The documentation implies this a debug bit.
      0 = WAKE# only asserted when VMAIN not available
      1 = WAKE# is depend on wake events and independent of VMAIN.
    
    Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git b/drivers/net/sky2.c a/drivers/net/sky2.c
index 2494842..edf37aa 100644
--- b/drivers/net/sky2.c
+++ a/drivers/net/sky2.c
@@ -733,6 +733,7 @@ static void sky2_wol_init(struct sky2_port *sky2)
 	unsigned port = sky2->port;
 	enum flow_control save_mode;
 	u16 ctrl;
+	u32 reg1;
 
 	/* Bring hardware out of reset */
 	sky2_write16(hw, B0_CTST, CS_RST_CLR);
@@ -786,6 +787,11 @@ static void sky2_wol_init(struct sky2_port *sky2)
 	/* Disable PiG firmware */
 	sky2_write16(hw, B0_CTST, Y2_HW_WOL_OFF);
 
+	/* Turn on legacy PCI-Express PME mode */
+	reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
+	reg1 |= PCI_Y2_PME_LEGACY;
+	sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
+
 	/* block receiver */
 	sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
 }
Date: Mon, 11 Jul 2011 09:59:57 -0400
From: Christoph Hellwig <hch@infradead.org>
To: xfs@oss.sgi.com
Cc: arekm@maven.pl
Subject: [PATCH] xfs: start periodic workers later
Message-ID: <20110711135957.GA23737@infradead.org>
MIME-Version: 1.0
Content-Type: text/plain;
  charset=us-ascii
Content-Disposition: inline
User-Agent: Mutt/1.5.21 (2010-09-15)

Start the periodic sync workers only after we have finished xfs_mountfs
and thus fully set up the filesystem structures.  Without this we can
call into xfs_qm_sync before the quotainfo strucute is set up if the
mount takes unusually long, and probably hit other incomplete states
as well.

Also clean up the xfs_fs_fill_super error path by using consistent
label names, and removing an impossible to reach case.

Reported-by: Arkadiusz Miskiewicz <arekm@maven.pl>
Signed-off-by: Christoph Hellwig <hch@lst.de>

Index: xfs/fs/xfs/linux-2.6/xfs_super.c
===================================================================
--- xfs.orig/fs/xfs/linux-2.6/xfs_super.c	2011-07-11 12:02:56.762758869 +0200
+++ xfs/fs/xfs/linux-2.6/xfs_super.c	2011-07-11 12:09:20.817344934 +0200
@@ -1411,37 +1411,35 @@ xfs_fs_fill_super(
 	sb->s_time_gran = 1;
 	set_posix_acl_flag(sb);
 
-	error = xfs_syncd_init(mp);
-	if (error)
-		goto out_filestream_unmount;
-
 	xfs_inode_shrinker_register(mp);
 
 	error = xfs_mountfs(mp);
 	if (error)
-		goto out_syncd_stop;
+		goto out_filestream_unmount;
+
+	error = xfs_syncd_init(mp);
+	if (error)
+		goto out_unmount;
 
 	root = igrab(VFS_I(mp->m_rootip));
 	if (!root) {
 		error = ENOENT;
-		goto fail_unmount;
+		goto out_syncd_stop;
 	}
 	if (is_bad_inode(root)) {
 		error = EINVAL;
-		goto fail_vnrele;
+		goto out_syncd_stop;
 	}
 	sb->s_root = d_alloc_root(root);
 	if (!sb->s_root) {
 		error = ENOMEM;
-		goto fail_vnrele;
+		goto out_iput;
 	}
 
 	return 0;
 
- out_syncd_stop:
-	xfs_inode_shrinker_unregister(mp);
-	xfs_syncd_stop(mp);
  out_filestream_unmount:
+	xfs_inode_shrinker_unregister(mp);
 	xfs_filestream_unmount(mp);
  out_free_sb:
 	xfs_freesb(mp);
@@ -1455,17 +1453,12 @@ xfs_fs_fill_super(
  out:
 	return -error;
 
- fail_vnrele:
-	if (sb->s_root) {
-		dput(sb->s_root);
-		sb->s_root = NULL;
-	} else {
-		iput(root);
-	}
-
- fail_unmount:
-	xfs_inode_shrinker_unregister(mp);
+ out_iput:
+	iput(root);
+ out_syncd_stop:
 	xfs_syncd_stop(mp);
+ out_unmount:
+	xfs_inode_shrinker_unregister(mp);
 
 	/*
 	 * Blow away any referenced inode in the filestreams cache.
On Sat, 2 Jul 2011, Andi Kleen wrote:

> > The problem is that blk_peek_request() calls scsi_prep_fn(), which 
> > does this:
> > 
> > 	struct scsi_device *sdev = q->queuedata;
> > 	int ret = BLKPREP_KILL;
> > 
> > 	if (req->cmd_type == REQ_TYPE_BLOCK_PC)
> > 		ret = scsi_setup_blk_pc_cmnd(sdev, req);
> > 	return scsi_prep_return(q, req, ret);
> > 
> > It doesn't check to see if sdev is NULL, nor does 
> > scsi_setup_blk_pc_cmnd().  That accounts for this error:
> 
> I actually added a NULL check in scsi_setup_blk_pc_cmnd early on,
> but that just caused RCU CPU stalls afterwards and then eventually
> a hung system.

The RCU problem is likely to be a separate issue.  It might even be a 
result of the use-after-free problem with the elevator.

At any rate, it's clear that the crash in the refcounting log you
posted occurred because scsi_setup_blk_pc_cmnd() called
scsi_prep_state_check(), which tried to dereference the NULL pointer.

Would you like to try this patch to see if it fixes the problem?  As I 
said before, I'm not certain it's the best thing to do, but it worked 
on my system.

Alan Stern




Index: usb-3.0/drivers/scsi/scsi_lib.c
===================================================================
--- usb-3.0.orig/drivers/scsi/scsi_lib.c
+++ usb-3.0/drivers/scsi/scsi_lib.c
@@ -1247,6 +1247,8 @@ int scsi_prep_fn(struct request_queue *q
 	struct scsi_device *sdev = q->queuedata;
 	int ret = BLKPREP_KILL;
 
+	if (!sdev)
+		return ret;
 	if (req->cmd_type == REQ_TYPE_BLOCK_PC)
 		ret = scsi_setup_blk_pc_cmnd(sdev, req);
 	return scsi_prep_return(q, req, ret);
Index: usb-3.0/drivers/scsi/scsi_sysfs.c
===================================================================
--- usb-3.0.orig/drivers/scsi/scsi_sysfs.c
+++ usb-3.0/drivers/scsi/scsi_sysfs.c
@@ -322,6 +322,8 @@ static void scsi_device_dev_release_user
 		kfree(evt);
 	}
 
+	/* Freeing the queue signals to block that we're done */
+	scsi_free_queue(sdev->request_queue);
 	blk_put_queue(sdev->request_queue);
 	/* NULL queue means the device can't be used */
 	sdev->request_queue = NULL;
@@ -936,8 +938,6 @@ void __scsi_remove_device(struct scsi_de
 	/* cause the request function to reject all I/O requests */
 	sdev->request_queue->queuedata = NULL;
 
-	/* Freeing the queue signals to block that we're done */
-	scsi_free_queue(sdev->request_queue);
 	put_device(dev);
 }
 


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commit 3326c784c9f492e988617d93f647ae0cfd4c8d09
Author: Jiri Pirko <jpirko@redhat.com>
Date:   Wed Jul 20 04:54:38 2011 +0000

    forcedeth: do vlan cleanup
    
    - unify vlan and nonvlan rx path
    - kill np->vlangrp and nv_vlan_rx_register
    - allow to turn on/off rx vlan accel via ethtool (set_features)
    
    Signed-off-by: Jiri Pirko <jpirko@redhat.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
index 537b695..e64cd9c 100644
--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -820,9 +820,6 @@ struct fe_priv {
 	struct nv_skb_map *tx_end_flip;
 	int tx_stop;
 
-	/* vlan fields */
-	struct vlan_group *vlangrp;
-
 	/* msi/msi-x fields */
 	u32 msi_flags;
 	struct msix_entry msi_x_entry[NV_MSI_X_MAX_VECTORS];
@@ -2766,17 +2763,13 @@ static int nv_rx_process_optimized(struct net_device *dev, int limit)
 			skb->protocol = eth_type_trans(skb, dev);
 			prefetch(skb->data);
 
-			if (likely(!np->vlangrp)) {
-				napi_gro_receive(&np->napi, skb);
-			} else {
-				vlanflags = le32_to_cpu(np->get_rx.ex->buflow);
-				if (vlanflags & NV_RX3_VLAN_TAG_PRESENT) {
-					vlan_gro_receive(&np->napi, np->vlangrp,
-							 vlanflags & NV_RX3_VLAN_TAG_MASK, skb);
-				} else {
-					napi_gro_receive(&np->napi, skb);
-				}
+			vlanflags = le32_to_cpu(np->get_rx.ex->buflow);
+			if (vlanflags & NV_RX3_VLAN_TAG_PRESENT) {
+				u16 vid = vlanflags & NV_RX3_VLAN_TAG_MASK;
+
+				__vlan_hwaccel_put_tag(skb, vid);
 			}
+			napi_gro_receive(&np->napi, skb);
 
 			dev->stats.rx_packets++;
 			dev->stats.rx_bytes += len;
@@ -4484,6 +4477,27 @@ static u32 nv_fix_features(struct net_device *dev, u32 features)
 	return features;
 }
 
+static void nv_vlan_mode(struct net_device *dev, u32 features)
+{
+	struct fe_priv *np = get_nvpriv(dev);
+
+	spin_lock_irq(&np->lock);
+
+	if (features & NETIF_F_HW_VLAN_RX)
+		np->txrxctl_bits |= NVREG_TXRXCTL_VLANSTRIP;
+	else
+		np->txrxctl_bits &= ~NVREG_TXRXCTL_VLANSTRIP;
+
+	if (features & NETIF_F_HW_VLAN_TX)
+		np->txrxctl_bits |= NVREG_TXRXCTL_VLANINS;
+	else
+		np->txrxctl_bits &= ~NVREG_TXRXCTL_VLANINS;
+
+	writel(np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
+
+	spin_unlock_irq(&np->lock);
+}
+
 static int nv_set_features(struct net_device *dev, u32 features)
 {
 	struct fe_priv *np = netdev_priv(dev);
@@ -4504,6 +4518,9 @@ static int nv_set_features(struct net_device *dev, u32 features)
 		spin_unlock_irq(&np->lock);
 	}
 
+	if (changed & (NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX))
+		nv_vlan_mode(dev, features);
+
 	return 0;
 }
 
@@ -4879,29 +4896,6 @@ static const struct ethtool_ops ops = {
 	.self_test = nv_self_test,
 };
 
-static void nv_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
-{
-	struct fe_priv *np = get_nvpriv(dev);
-
-	spin_lock_irq(&np->lock);
-
-	/* save vlan group */
-	np->vlangrp = grp;
-
-	if (grp) {
-		/* enable vlan on MAC */
-		np->txrxctl_bits |= NVREG_TXRXCTL_VLANSTRIP | NVREG_TXRXCTL_VLANINS;
-	} else {
-		/* disable vlan on MAC */
-		np->txrxctl_bits &= ~NVREG_TXRXCTL_VLANSTRIP;
-		np->txrxctl_bits &= ~NVREG_TXRXCTL_VLANINS;
-	}
-
-	writel(np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
-
-	spin_unlock_irq(&np->lock);
-}
-
 /* The mgmt unit and driver use a semaphore to access the phy during init */
 static int nv_mgmt_acquire_sema(struct net_device *dev)
 {
@@ -5208,7 +5202,6 @@ static const struct net_device_ops nv_netdev_ops = {
 	.ndo_validate_addr	= eth_validate_addr,
 	.ndo_set_mac_address	= nv_set_mac_address,
 	.ndo_set_multicast_list	= nv_set_multicast,
-	.ndo_vlan_rx_register	= nv_vlan_rx_register,
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	.ndo_poll_controller	= nv_poll_controller,
 #endif
@@ -5226,7 +5219,6 @@ static const struct net_device_ops nv_netdev_ops_optimized = {
 	.ndo_validate_addr	= eth_validate_addr,
 	.ndo_set_mac_address	= nv_set_mac_address,
 	.ndo_set_multicast_list	= nv_set_multicast,
-	.ndo_vlan_rx_register	= nv_vlan_rx_register,
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	.ndo_poll_controller	= nv_poll_controller,
 #endif
commit 0891b0e08937aaec2c4734acb94c5ff8042313bb
Author: Jiri Pirko <jpirko@redhat.com>
Date:   Tue Jul 26 10:19:28 2011 +0000

    forcedeth: fix vlans
    
    For some reason, when rxaccel is disabled, NV_RX3_VLAN_TAG_PRESENT is
    still set and some pseudorandom vids appear. So check for
    NETIF_F_HW_VLAN_RX as well. Also set correctly hw_features and set vlan
    mode on probe.
    
    Signed-off-by: Jiri Pirko <jpirko@redhat.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
index e64cd9c..e55df30 100644
--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -2764,7 +2764,14 @@ static int nv_rx_process_optimized(struct net_device *dev, int limit)
 			prefetch(skb->data);
 
 			vlanflags = le32_to_cpu(np->get_rx.ex->buflow);
-			if (vlanflags & NV_RX3_VLAN_TAG_PRESENT) {
+
+			/*
+			 * There's need to check for NETIF_F_HW_VLAN_RX here.
+			 * Even if vlan rx accel is disabled,
+			 * NV_RX3_VLAN_TAG_PRESENT is pseudo randomly set.
+			 */
+			if (dev->features & NETIF_F_HW_VLAN_RX &&
+			    vlanflags & NV_RX3_VLAN_TAG_PRESENT) {
 				u16 vid = vlanflags & NV_RX3_VLAN_TAG_MASK;
 
 				__vlan_hwaccel_put_tag(skb, vid);
@@ -5331,15 +5338,16 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
 		np->txrxctl_bits |= NVREG_TXRXCTL_RXCHECK;
 		dev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_SG |
 			NETIF_F_TSO | NETIF_F_RXCSUM;
-		dev->features |= dev->hw_features;
 	}
 
 	np->vlanctl_bits = 0;
 	if (id->driver_data & DEV_HAS_VLAN) {
 		np->vlanctl_bits = NVREG_VLANCONTROL_ENABLE;
-		dev->features |= NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_TX;
+		dev->hw_features |= NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_TX;
 	}
 
+	dev->features |= dev->hw_features;
+
 	np->pause_flags = NV_PAUSEFRAME_RX_CAPABLE | NV_PAUSEFRAME_RX_REQ | NV_PAUSEFRAME_AUTONEG;
 	if ((id->driver_data & DEV_HAS_PAUSEFRAME_TX_V1) ||
 	    (id->driver_data & DEV_HAS_PAUSEFRAME_TX_V2) ||
@@ -5607,6 +5615,8 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
 		goto out_error;
 	}
 
+	nv_vlan_mode(dev, dev->features);
+
 	netif_carrier_off(dev);
 
 	dev_info(&pci_dev->dev, "ifname %s, PHY OUI 0x%x @ %d, addr %pM\n",